(recover-session): Use auto-save-list-file-prefix.

lisp/files.el

@@ -2153,7 +2153,7 @@ previous sessions that you could recover from.
 To choose one, move point to the proper line and then type C-c C-c.
 Then you'll be asked about a number of files to recover."
   (interactive)
-  (dired "~/.save*")
+  (dired (concat auto-save-list-file-prefix "*"))
   (goto-char (point-min))
   (or (looking-at "Move to the session you want to recover,")
       (let ((inhibit-read-only t))